/*
 * Copyright 2009-2017 Alibaba Cloud All rights reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#pragma once

#include <string>

namespace AlibabaCloud
{
namespace OSS
{

    class  Signer
    {
    public:
        enum Type
        {
            HmacSha1,
        };
        virtual ~Signer();

        virtual std::string generate(const std::string &src, const std::string &secret)const = 0;
        std::string name()const;
        Type type() const;
        std::string version()const;
    protected:
        Signer(Type type, const std::string &name, const std::string &version = "1.0");
    private:
        Type type_;
        std::string name_;
        std::string version_;
    };
}
}
